Blind faith believes that which it is told, because it wants to believe. Intellect believes that which it understands, because it wants to attain understanding. Wisdom believes that which is true, because it is true. Wisdom doesn’t have to fit that which some self-serving faith wishes to believe. Neither does it await the approval of intellect to say, “This can be understood.” Wisdom is a power of vision, the power to see “that which is” without attempting to fit it into any mold. It is not blind at all, but it is nevertheless faith beyond reason. Because when you see the truth before you, all the reason in the world can't convince you otherwise. Wisdom, therefore, is the only channel by which an Infinite G‑d may enter. Tanya, chapter 35.